CAUTION: Before you begin the following procedure, see the safety instructions in the Product Information
Guide.
NOTICE: To avoid damaging the system board, you must remove the main battery before you begin working
inside the computer (see Before You Begin).
CAUTION: To prevent static damage to components inside your computer, discharge static electricity from
your body before you touch any of your computer's electronic components. You can do so by touching an
unpainted metal surface.